package chapter3;
import java.util.Scanner;
public class season_1 {
    public static void main(String[] args) {
        Scanner input=new Scanner(System.in);
        int a=input.nextInt();
        if (a==3|a==4|a==5){
            System.out.println("春天");
        }
        if (a==6|a==7|a==8){
            System.out.println("夏天");
        }
        if (a==9|a==10|a==11){
            System.out.println("秋天");
        }
        if (a==12|a==1|a==2){
            System.out.println("冬天");
        }
    }
}
